My little error was that somehow my calculations for rolling resistance factored in velocity - Crr x m x g x v.
It should have been Crr x m x g.
The result is that I only need half the batteries for my electric trike then I thought.
So, only three and a half thousand AAs then?
Five thousand, eight hundred rechargable AA cells.
Cool! A nice error to find, then.
in the garden about half an hour ago, asking myself (and some particular plants that have multiplied and look a bit crowded) if some of them would like to be in the front garden, with more sun. It was almost as if they were replying, because the wind caught them and they seemed to be nodding their heads as if to say "No!". 
Might tell you about that later. I am going to 
They would if they could get a word in.
I am feeling better.
To go with tea there should always be cake.
Found one for Arch.
I saw it in a cake shop and had to take a photo.Night Train, please enlighten me as to what you were looking for when you found that.
It looks lovely!
